# frozen_string_literal: true

require "helper"

require "nkf"

module Nokogiri
  module HTML
    class TestNode < Nokogiri::TestCase
      def setup
        super
        @html = Nokogiri::HTML4(<<-eohtml)
        <html>
          <head></head>
          <body>
            <div class='baz'><a href="foo" class="bar">first</a></div>
          </body>
        </html>
        eohtml
      end

      def test_to_a
        assert_equal([["class", "bar"], ["href", "foo"]], @html.at("a").to_a.sort)
      end

      def test_attr
        node = @html.at("div.baz")
        assert_equal(node["class"], node.attr("class"))
      end

      def test_get_attribute
        element = @html.at("div")
        assert_equal("baz", element.get_attribute("class"))
        assert_equal("baz", element["class"])
        element["href"] = "https://nokogiri.org/"
        assert_match(/nokogiri.org/, element.to_html)
      end

      # The HTML parser ignores namespaces, so even properly declared namespaces
      # are treated as as undeclared and have to be accessed via prefix:tagname
      def test_ns_attribute
        html = '<i foo:bar="baz"></i>'
        doc = Nokogiri::HTML4(html)
        assert_equal("baz", (doc % "i")["foo:bar"])
      end

      def test_css_path_round_trip
        doc = Nokogiri::HTML4(File.read(HTML_FILE))
        ["#header", "small", "div[2]", "div.post", "body"].each do |css_sel|
          ele = doc.at(css_sel)
          assert_equal(ele, doc.at(ele.css_path), ele.css_path)
        end
      end

      def test_path_round_trip
        doc = Nokogiri::HTML4(File.read(HTML_FILE))
        ["#header", "small", "div[2]", "div.post", "body"].each do |css_sel|
          ele = doc.at(css_sel)
          assert_equal(ele, doc.at(ele.path), ele.path)
        end
      end

      def test_append_with_document
        assert_raises(ArgumentError) do
          @html.root << Nokogiri::HTML4::Document.new
        end
      end

      ###
      # Make sure a document that doesn't declare a meta encoding returns
      # nil.
      def test_meta_encoding
        assert_nil(@html.meta_encoding)
      end

      def test_description
        assert(desc = @html.at("a.bar").description)
        assert_equal("a", desc.name)
      end

      def test_ancestors_with_selector
        assert(node = @html.at("a.bar").child)
        assert(list = node.ancestors(".baz"))
        assert_equal(1, list.length)
        assert_equal("div", list.first.name)
      end

      def test_matches_inside_fragment
        fragment = DocumentFragment.new(@html)
        fragment << XML::Node.new("a", @html)

        a = fragment.children.last
        assert(a.matches?("a"), "a should match")
      end

      def test_css_matches?
        assert(node = @html.at("a.bar"))
        assert(node.matches?("a.bar"))
      end

      def test_xpath_matches?
        assert(node = @html.at("//a"))
        assert(node.matches?("//a"))
      end

      def test_unlink_then_swap
        node = @html.at("a")
        node.unlink

        assert_raises(RuntimeError) { node.add_previous_sibling(@html.at("div")) }
      end

      def test_swap
        @html.at("div").swap('<a href="foo">bar</a>')
        a_tag = @html.css("a").first
        assert_equal("body", a_tag.parent.name)
        assert_equal(0, @html.css("div").length)
      end

      def test_swap_with_regex_characters
        @html.at("div").swap('<a href="foo">ba)r</a>')
        a_tag = @html.css("a").first
        assert_equal("ba)r", a_tag.text)
      end

      def test_attribute_decodes_entities
        node = @html.at("div")
        node["href"] = "foo&bar"
        assert_equal("foo&bar", node["href"])
        node["href"] += "&baz"
        assert_equal("foo&bar&baz", node["href"])
      end

      def test_parse_config_option
        node = @html.at("div")
        options = nil
        node.parse("<div></div>") do |config|
          options = config
        end
        assert_equal(Nokogiri::XML::ParseOptions::DEFAULT_HTML, options.to_i)
      end

      def test_fragment_handler_does_not_regurge_on_invalid_attributes
        iframe = %{<iframe style="width: 0%; height: 0px" src="http://someurl" allowtransparency></iframe>}
        assert(@html.at("div").fragment(iframe))
      end

      def test_fragment
        fragment = @html.fragment(<<-eohtml)
          hello
          <div class="foo">
            <p>bar</p>
          </div>
          world
        eohtml
        assert_match(/^hello/, fragment.inner_html.strip)
        assert_equal(3, fragment.children.length)
        assert(p_tag = fragment.css("p").first)
        assert_equal("div", p_tag.parent.name)
        assert_equal("foo", p_tag.parent["class"])
      end

      def test_fragment_serialization
        fragment = Nokogiri::HTML4.fragment("<div>foo</div>")
        assert_equal("<div>foo</div>", fragment.serialize.chomp)
        assert_equal("<div>foo</div>", fragment.to_xml.chomp)
        assert_equal("<div>foo</div>", fragment.inner_html)
        assert_equal("<div>foo</div>", fragment.to_html)
        assert_equal("<div>foo</div>", fragment.to_s)
      end

      def test_to_html_does_not_contain_entities
        return unless defined?(NKF) # NKF is not implemented on Rubinius as of 2009-11-23

        html = NKF.nkf("-e --msdos", <<-EOH)
        <html><body>
        <p> test paragraph
        foo bar </p>
        </body></html>
        EOH
        nokogiri = Nokogiri::HTML4.parse(html)

        if RUBY_PLATFORM.include?("java")
          # NKF linebreak modes are not supported as of jruby 1.2
          # see http://jira.codehaus.org/browse/JRUBY-3602 for status
          assert_equal(
            "<p>testparagraph\nfoobar</p>",
            nokogiri.at("p").to_html.delete(" "),
          )
        else
          assert_equal(
            "<p>testparagraph\r\nfoobar</p>",
            nokogiri.at("p").to_html.delete(" "),
          )
        end
      end

      def test_GH_1042
        file = File.join(ASSETS_DIR, "GH_1042.html")
        html = Nokogiri::HTML4(File.read(file))
        table = html.xpath("//table")[1]
        trs = table.xpath("tr").drop(1)

        # the jruby inplementation of drop uses dup() on the IRubyObject (which
        # is NOT the same dup() method on the ruby Object) which produces a
        # shallow clone. a shallow of valid XMLNode triggers several
        # NullPointerException on inspect() since loads of invariants
        # are not set. the fix for GH1042 ensures a proper working clone.
        trs.inspect # assert_nothing_raised
      end

      def test_fragment_node_to_xhtml # see #2355
        html = "<h1><a></a><br>First H1</h1>"
        fragment = Nokogiri::HTML4::DocumentFragment.parse(html)
        assert_equal("<h1><a></a><br />First H1</h1>", fragment.at_css("h1").to_xhtml)
      end
    end
  end
end
